Question
In: Biology
A)How is the lac operon regulated if the bacteria is put into an environment where there...
A)How is the lac operon regulated if the bacteria is put into an environment where there is excess amount of lactose and glucose at the same time. (10 pts)
B)From the previous question, how would the outcome change if the glucose and lactose amounts are very low? (10 pts)
C)Where would the lac repressor be bound in E. Coli bacteria that is growing in low glucose and high lactose? (7pts)
Solutions
gladiator answered 1 year agoRelated Solutions
How is the lac operon regulated if the bacteria is put into an environment where there...
How is the lac operon regulated if the bacteria is put
into an environment where there is excess amount of lactose and
glucose at the same time. (10 pts)
7) From the previous question, how would the outcome
change if the glucose and lactose amounts are very low? (10
pts)
6) How is the lac operon regulated if the bacteria is put into an environment where...
6) How is the lac operon regulated if the bacteria is put into
an environment where there is excess amount of lactose and glucose
at the same time. (10 pts)
6) How is the lac operon regulated if the bacteria is put into an environment where...
6) How is the lac operon regulated if the bacteria is put into an
environment where there is excess amount of lactose and glucose at
the same time. (10 pts)
7) From the previous question, how would the outcome
change if the glucose and lactose amounts are very low? (10
pts)
The lac operon is just one specific example of an operon that is regulated both negatively,...
The lac operon is just one specific example of an
operon that is regulated both negatively, by binding of a
repressor, and positively by catabolite
repression. Describe another example of this type,
providing details of the ligands that positively and negatively
regulate transcription of the operon, and briefly describe the
genes in the operon and the molecular logic of the specific operon
you describe.
Discuss, in detail, catabolite repression in the Lac operon. Indicate how this system is regulated under...
Discuss, in detail, catabolite repression in the Lac operon.
Indicate how this system is regulated
under various nutrient scenarios, all relevant components involved,
and how these components
interact.
The lac operon is regulated via positive and negative regulation. Explain how each mechanism works on...
The lac operon is regulated via positive and negative
regulation. Explain how each
mechanism works on this operon, and under which circumstances will
the operon be
turned on. Include the definition of an operon
2. What are the advantages to a microbe of having inducible
enzymes? What is the
function of toluene in the experiment where you induced enzyme
function?
How does the lac repressor affect transcription of the lac operon
How does the lac repressor affect transcription
of the lac operon
Lac operon experiment
Detailed explanatio of Lac operon experiment, when the bacteria were placed in dropper bottles containing glycerol as a carbon source.
1) 4pts - The presence of glucose in the environment prevents lots of lac operon expression,...
1) 4pts - The presence of glucose in the environment prevents
lots of lac operon expression, while glucose’s absence greatly
increases expression – discuss how ATP concentration, adenylyl
cyclase, and CAP/cAMP and holoenzyme increase lac operon
expression.
2) Discuss how promoters, enhancers and the TF proteins that
interact with them are used in eukaryotic cells to
control transcription of housekeeping genes versus
cell specific/regulated genes? Be specific about
everything’s role – what binds where and does what!
A) 4pts -...
questions 1-4? 1. Use the following diagram of the lac I gene and lac operon. Where would...
questions 1-4?
1.
Use the following diagram of the lac I gene and lac
operon. Where would the lac repressor be bound in
a (nonmutant) E. coli cell that is growing in no glucose and high
lactose?
(I = lac repressor gene; Z, Y, A = lac operon structural genes;
P = lac promoter; O = lac operator)
The repressor would not be bound
P
I
P and O
O
2.
Euchromatin is associated with more loose and open organization
of...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- A neurologist needs to counsel a stroke victim and her husband about possible outcomes, treatment options,...
- Case Study: Personal Beliefs in the Workplace Don Shakow was a prominent professional who worked in...
- 1: Competency framework usage is the modern best practice in management. What is meant by competency...
- A 19.34 g mixture of sugar (C12H22O11) and table salt (NaCl) is dissolved in 231 g...
- Young and Company claims that its pressurized diving bell will, on average, maintain its integrity to...
- 1) Alternative compiled code sequence using instructions in classes A, B, C. What is the average...
- An asset is purchased on January 1 for $48,700. It is expected to have a useful...
ADVERTISEMENT